Here is the full list of all 10 Vengeance achievements.
Reached max level.
Reached the half of max level!
Win 5 Gun Game matches
Won 5 Deathmatch Matches
Won 10 rounds of Domination
Won 5 Team Deathmatch Matches
Win 100 Gun Game matches
Win 100 Deathmatch matches!
Win 100 Team Deathmatch matches!
Win 100 Domination matches!